Grease cup



jam 299 1925.l v i 1,523,5l3

L.. R. BUELL GREASE UP Filed Feb. 23; 1925 IWW? WMZ@ A TTGRNEYS Patented dan. 2Q, i925.

enana LAWRENCE R. BUELL, OE LAKE- GENEVA, VJSCONSIN.

GREASE CUE?.

Application filed February 23, 1923,

Re it linown that I. LAwnnNcn R. Burnin, a citizen ot the United States, and resident of Lake Geneva. in the county ot lValworth and State ot Wisconsin, have invented new and usetul improvements in Grease Cups, of which the following is a description, reference being had to the accompanying drawings, which are a part ot this specilication.

This invention relates to improvements in grease cups, and more particularly to `grease cups for use on agricultural machinery, and heavy vehicles.

The ordinary form ot grease cup consists of a stem and a barrel screwed upon the stem, which barrel serves as a. grease reservoir and stores the lubricant in a position where the bearings will not get the benefit ot the same.

It is therefore, one of the objects of the present invention to provide a grease cup which will meet the lubricant requirements ot tractors, automobiles, agricultural machinery` etc., and which will direct the lubricant contained therein directly to the bearings.

A further object ot t-he invention is to provide a grease cup which will eliminate the necessity ot removing any of the parts when re-iilling.

A t'iuther object of the invention is to provide a grease cup in which the cap cannot become accidentally removed or unthreaded from the grease cup proper, but, when desired, the cap can be released so as to be entirely unthreaded and removed.

A further object of the invention is to provide means: by which a force filler mayT be anchored to the grease cup so that in filling, no lubricant is lost as it passes from the force filler into the cup.

A further object of the invention is to provide a grease cup which will store the lubricant after the bearings have been i'illed so that when the bearings again require lubricant, a` turning ot the cap of the grease cup will force grease into the bearings.

A further object of the invention is to provide an improved grease cup which is of very simple construction, is inexpensive to manufacture, is strong and durable, and is well adapted for the purposes described.

lith the above and other objects in view, the invention consists of the improved grease. cup, and its parts and combinations Serial No. 620,770.

as set forth in the claim and all equivalents thereof.

In the accompanying drawing in which the same reference characters indicate the saine parts in all of the views:

Fig. l is a side view of the improved grease cup, parts being shown in section;

Fig. 2 is a top view thereof. part being broken away and shown in section;

Fig. 3 is a fragmentary view of the grease cup showing a force tiller anchored thereto, part being shown in section; and

Fig. 4 is a. bottom view of the attachment Yfor the torce filler.

Referring now more particularly to the drawing, the numeral 8 indicates a. grease cup proper having the. threaded tubular stem portion 9 which is fitted into the bearings (not shown). The portion l0 of the grease cup is enlarged to form a barrel or reservoir for storing the lubricant and its outer surface is threaded as at 11. A cap or cover member l2 is provided to be threaded onto the barrel portion l0. Centrally disposed in they top portion of the cap is a.

circular aperture 13 t'or the reception of a lubricant into the grease cup, and said aperture is normally close-d by means oi a disc 14- positioned directly below said aperture on the underside of the cap. Said disc has its mid-portion raised so as to be within aperture An elongated Hat spring` 15. removably supported to the underside of the cap by a pair ot downwardly projecting and oppositely disposed L-shaped hooks 16. yieldingly holds the disc in place adjacent the aperture 13 and said disc is secured to the spring by a pin 14. To remove said spring, it is merely necessary to give it a slight turn so as to swing` it clear ot the hooks 16.

In injecting a lubricant into the grease cup` it is desirable that the cap be unthreaded so that the capacity of the barrel ot the cup will be enlarged and so that at some later time, the cap can be turned downwardly to torce grease stored in the barrel into the bearings. However, it is also desirable that the cap is not removed from the barrel because the threads are apt to become filled with grease and it is very diiiicult and troublesome to put the cap back onto thel barrel. Hence, with the above in view. i. e.. to permit the unthread'ing of the cap to increase the capacity of the barrel and to prevent the accidental, entire removal of the cap, a lock means for the cap is provided. Said means consists 01"' a iat spring 17 secured to the outer surface oit' the cap, comparatirel)v close to its edge, and at one end only.. as at 18. jin inwardly projectingl stud i9 is carried by the tree end of said spring` and said stud extends through an opening in the cap as shown in Fig. 2. Between some oit' the upper threads ll on the barrel l0, a small depression 20 'is formed which has an inclined side 2l and the other side 22 perpendicular. Thus., in threading the cap onto the barrel the stud 19 will ride over the incline 21 of the depression. lint, in unthreadinr the cap, when the stud reaches the depression 'it Will meet the shoulder 22 thereof and the cap Will be locked against anyv further unthreading. Should it be desired, however, to entirely remove the cap from the barrel, the 'flexibility ot spring 1T will permit its being liited (.)utn'ardly to diseng'ae'e the shoulder.

In Figs. 3 and 1i an additional part of the device is illustrate-d, i. e. an anchoring ineinber tor a force liller. The numeral represents a tubular member connected with a torce filler for lubricant (not shown). The tree end oi said tubular member has formed thereon the metallic anchorinl member provided with an opening 25 Which is in alignment with the interior of the tubular member. Formed near the ou end portion of the member 2st is an annular flange 2G and projecting therefrom is the aperture engaging portion 27 Which is of such a diameter as to allow it to fit tightly7 into the aperture 13 in the top of the grease cup cap. The depth of said portion 27 is approxiniatel.7 equal to the thickness ot the top of theV grease cup cap. Flanges 29 and S0 project outwardly and radiall7 troni the port-ion in Fig. the anchoring member 2%1- isshovvn in connection with the grease cup andreadyY to perin'it lubricant to be forced therethrough and into the ifrease cup and bea-rings. To effect sai-c attachment or anchoring, member 24 is positioned adjacent the outer tace ot the top oi the grease cup cap. A pair of spaced slots Si. communicating with the aperture 3 are provided in the top of the cap and said slotsy receive the flanges 29 and 30 so that the portion 2T ot member 2% Will be within the aperture and the annular Hanne 26 will bear against the top ot the cap. To loch the anchoring member 2l into the grease cup it is given a slight turn so that the thinges will be moved away from the siots 3i. rEhe inet-al around the aperture 'iii is of a slightlyv less breadth adjacent the adjacent the aperture to close it. Spaccd opstanding` projections 233 are lmfnied on the. upper peripheri7 ot' the cap to permit the insertion oi'l a tlat tool. or rod tlnrebetween to gain leverage when it is needed to tnrn the tgrease cup.

From the foregoing' description, it Will be seen that the improved grease cupI is ot very simple construction, and is Well adapted ior the purpose described lfhat .lf clai-n'i as my 'invention is:

fr grease cup, con'iprisingl a member hava reservoir portion and' a stein, a cap secured to saitL reservoir portion, a central i rnre in the top of said cap. adisc valve .hin said cap adjacent said aperture, a t spring'*supporting said disc and norly holding it adjacent said aperture, and o esitelr disposedhooks 'for renloVz-ilily holding; said spring to` the 'interior of the cap in a rleldable position.

V.n tesinnony whereof, I aii'ixmy sie'- tawnnnon n. BUELL, 

